eh the policies in place already for combating space junk have resulted in considerable progress in the last five years. The problem of new space junk has already dropped significantly, and if things continue on pace we'll be in a good place in a few years.

The problem of existing space junk is different however.

Here's a great report ESA recently released about progress here https://www.esa.int/Space_Safety/Space_Debris/ESA_s_Space_Environment_Report_2022